Thomas, now my only problem is that the header refreshes on every single
placechange. As it may contain data which only needs to be loaded once for a
given session, this seems wasteful.
See: https://groups.google.com/forum/#!topic/google-web-toolkit/zYBLljOZjS4
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Hi.
How would I make a root widget (or presenter?), which contains anything
which should be on every page, e.g. a header and footer. I'm using the MVP
features of GWT 2.1.
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Hi Matthew,
The easiest way is to put header and footer divs in your HTML host
page. If you need to update the content dynamically, you can call
Document.get().getElementById(div_id).setInnerHTML() to change the
contents in the div.
Or you can use DockLayoutPanel and attach sub-panels for the
Thank you for your answer. I'm not sure that putting it in the host page is
a good idea for my app -- I'd rather use that as a last resort.
My current onModuleLoad override method in my Entry Point is this:
private SimplePanel appWidget = new SimplePanel();
public void
Do your header and footer actually need to be Activities? If not, I
think it would be easier to set up a DockLayoutPanel as your main
widget and create ActivityManagers only for those regions that need
them. This thread might give you some ideas:
No, you don't have to subclass SimplePanel.
Just use a DockLayoutPanel (or whatever), that you'll add to the
RootLayoutPanel, but put the SimplePanel *within* that DockLayoutPanel.
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Hi.
I thought I'd play with having multiple ActivityMappers. Here's what I've
got so far:
@Override
public void onModuleLoad() {
DockLayoutPanel containerWidget = new DockLayoutPanel(Unit.PX);
SimplePanel headerWidget = new SimplePanel();
SimplePanel mainWidget = new SimplePanel();
A Place is equivalent to a URL, this is where you are, and is global to
your application. Instead of having multiple places at once, you instead
have ActivityMapper that react differently to the same place. In your case,
for the default place, your HeaderActivityMapper would return the
Sorry, I was confused because David C. said this in the thread which he
linked to: In this design, the WestActivity could
call placeController.goTo(detailPlace), where DetailPlace is mapped only
in the EastActivityMapper so the westPanel won't change. When I read that,
I think that what I
Thanks for your blog post on working around the lack of true nesting -- very
useful. I've got it working now.
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